Decreases in postural change of finger blood flow in ceramic painters chronically exposed to low level lead
✍ Scribed by Masaaki Ishida; Masao Ishizaki; Yuichi Yamada
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 547 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0271-3586
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✦ Synopsis
To elucidate the effect of low level lead (Pb) exposure on somatic and autonomic peripheral nerve functions in ceramic painter;, 58 males and 70 females, aged 29-75 years (mean 53.3 years), with lead concentrutions in blood (Pb-B) ranging .from 2. I to 69.5 pg/dl (geometric meun 13.3 pg/dl), \rere examined for median nerve maximal conduction velociv as a measure of motor nerve .function, the coefficient of variation of R-R i n t e n d on electrocardiography as a measure of parasjmpathetic function, and postural changes in finger blood flow rduine (AFBF), and changes in finger blood ,flow drop velocit). (FDV) from the supine ro standing position as a measure of sympathetic function. No significrint association was.found between Pb-B levels and the results ?f the neurophvsiological tests, however, except for that between Pb-B and AFBF. AFBF wus decreased linearly with increasing Pb-B levels. However, this association could not be concluded to be a reflection of sympathetic nerve dysfunction due to Pb exposure in the subjects, since AFBF was not a specific parameter of .gmpathetic nen'e function. The possibilih thut the decrease in AFBF is LI reflection qf the atherosclerotic effect qf chronic low level Pb exposure should be further investigated. 0 I996 Wllep-LlFc.